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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Hortaliças. |
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Data corrente: |
25/11/2003 |
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Data da última atualização: |
14/10/2004 |
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Autoria: |
COSTA, R. A.; RODRIGUES, R. |
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Título: |
Genetic analysis of resistance to bacterial spot in sweet pepper genotypes. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 1, p. 11-15, Mar. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Bacterial spot (BS) is considered one of the most important diseases in sweet pepper cultivation and can cause grear yield losses. Combining abilities for leaf and fruit resistance to BS of five sweet pepper genotypes were assessed. Analysis was performed using te diallel cross design following Method II, Model I proposed by Griffing (1956). Leaves were inoculated using the infiltration method while fruits were inoculated by perforation with a hypodemic needle. Leaf reaction to BS was assessed threee weeds after inoculation by a score scale ranging from 1 (resistant) to 6 (susceptible). Fruit reaction was assessed seven days after inoculation according to a score scale ranging from 1 (resistant) to 5 (susceptible). Significant General Combining Abilty (GCA) effects were detected for both leaves and fruits. Specific Combining Ability (SCA) for resistance to BS was not significant for either leaves or fruits. According to the analysis of Griffing (1956), the parents BGH 1772 and BGH 3071 contributed to the increase in leaf resistance, and BGH 1772 and UENF 1421 to fruit resistance. |
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Palavras-Chave: |
Análise dialélica; Capacidade combinatória; Xanthomonas axonopodis vesicatoria. |
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Thesagro: |
Capsicum Annuum; Cruzamento Dialélico; Doença; Mancha Bacteriana; Pimentão; Resistência. |
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Categoria do assunto: |
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Marc: |
LEADER 01819naa a2200241 a 4500
001 1212557
005 2004-10-14
008 2002 bl uuuu u00u1 u #d
100 1 $aCOSTA, R. A.
245 $aGenetic analysis of resistance to bacterial spot in sweet pepper genotypes.
260 $c2002
520 $aBacterial spot (BS) is considered one of the most important diseases in sweet pepper cultivation and can cause grear yield losses. Combining abilities for leaf and fruit resistance to BS of five sweet pepper genotypes were assessed. Analysis was performed using te diallel cross design following Method II, Model I proposed by Griffing (1956). Leaves were inoculated using the infiltration method while fruits were inoculated by perforation with a hypodemic needle. Leaf reaction to BS was assessed threee weeds after inoculation by a score scale ranging from 1 (resistant) to 6 (susceptible). Fruit reaction was assessed seven days after inoculation according to a score scale ranging from 1 (resistant) to 5 (susceptible). Significant General Combining Abilty (GCA) effects were detected for both leaves and fruits. Specific Combining Ability (SCA) for resistance to BS was not significant for either leaves or fruits. According to the analysis of Griffing (1956), the parents BGH 1772 and BGH 3071 contributed to the increase in leaf resistance, and BGH 1772 and UENF 1421 to fruit resistance.
650 $aCapsicum Annuum
650 $aCruzamento Dialélico
650 $aDoença
650 $aMancha Bacteriana
650 $aPimentão
650 $aResistência
653 $aAnálise dialélica
653 $aCapacidade combinatória
653 $aXanthomonas axonopodis vesicatoria
700 1 $aRODRIGUES, R.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 1, p. 11-15, Mar. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| 6. |  | SANTOS, R. F. dos; CALEGAR, G. M.; SILVA, V. V. da; BARROS, M. A. L.; LIMA, J. O. A. de A.; MOTTA, J. da S.; SOUZA NETO, J. de. Avaliação sócio-econômica das pesquisas da Embrapa na região nordeste. Brasília, DF: Embrapa, 1989. 45 p. (Embrapa- SEP. Documentos, 37).| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Unidades Centrais. |
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